Question 1

What does CI 77266 \ Nano\ / Black 2 do in a cosmetic formula?

Accepted Answer

This ingredient functions as an insoluble it colorant, giving strong opacity and deep tint in makeup, nail products, hair color, and some skin-care formats.

Question 2

Is CI 77266 \ Nano\ / Black 2 clean?

Accepted Answer

Clean-beauty frameworks often flag it because it is a synthetic nanoscale pigment, with scrutiny focused on inhalation exposure from sprays or loose powders and on PAH impurity controls. In leave-on dermal products it is generally low-irritation when specifications are met, but it appears on some restricted lists for nano materials.

Question 3

Is CI 77266 \ Nano\ / Black 2 sustainable?

Accepted Answer

This material is typically made from fossil-derived hydrocarbon feedstocks using high-temperature processing, so it is not renewable and is energy intensive. It is insoluble and not meaningfully biodegradable, with environmental concern centered on persistent particulate release.

Question 4

Is CI 77266 \ Nano\ / Black 2 COSMOS-approved?

Accepted Answer

It is not permitted as a cosmetic colorant under COSMOS natural or organic certification. Its Green Chemistry fit is weak because of fossil feedstocks, high-temperature manufacture, and poor biodegradability, even though it is typically used at low levels.

Question 5

How does CI 77266 \ Nano\ / Black 2 work chemically?

Accepted Answer

This material is a nanoscale, insoluble particulate pigment with very high surface area and strong visible-light absorption. EU safety opinions support dermal use up to 10% when strict purity limits are met, including low PAH and benzo[a]pyrene residues, and they do not cover applications that may lead to lung exposure.